add bench for precompiled programs (#35310)

* add bench for ed25519 instruction

* add bench for secp256k1 instruction

* Apply suggestions from code review

Co-authored-by: Andrew Fitzgerald <apfitzge@gmail.com>

* prepare unique txs for benching

* use iter::Cycle for endless loop

---------

Co-authored-by: Andrew Fitzgerald <apfitzge@gmail.com>

sdk/benches/ed25519_instructions.rs

@@ -0,0 +1,94 @@
+#![feature(test)]
+
+extern crate test;
+use {
+    rand0_7::{thread_rng, Rng},
+    solana_sdk::{
+        ed25519_instruction::new_ed25519_instruction,
+        feature_set::FeatureSet,
+        hash::Hash,
+        signature::{Keypair, Signer},
+        transaction::Transaction,
+    },
+    test::Bencher,
+};
+
+// 5K transactions should be enough for benching loop
+const TX_COUNT: u16 = 5120;
+
+// prepare a bunch of unique txs
+fn create_test_transactions(message_length: u16) -> Vec<Transaction> {
+    (0..TX_COUNT)
+        .map(|_| {
+            let mut rng = thread_rng();
+            let privkey = ed25519_dalek::Keypair::generate(&mut rng);
+            let message: Vec<u8> = (0..message_length).map(|_| rng.gen_range(0, 255)).collect();
+            let instruction = new_ed25519_instruction(&privkey, &message);
+            let mint_keypair = Keypair::new();
+
+            Transaction::new_signed_with_payer(
+                &[instruction.clone()],
+                Some(&mint_keypair.pubkey()),
+                &[&mint_keypair],
+                Hash::default(),
+            )
+        })
+        .collect()
+}
+
+#[bench]
+fn bench_ed25519_len_032(b: &mut Bencher) {
+    let feature_set = FeatureSet::all_enabled();
+    let txs = create_test_transactions(32);
+    let mut tx_iter = txs.iter().cycle();
+    b.iter(|| {
+        tx_iter
+            .next()
+            .unwrap()
+            .verify_precompiles(&feature_set)
+            .unwrap();
+    });
+}
+
+#[bench]
+fn bench_ed25519_len_128(b: &mut Bencher) {
+    let feature_set = FeatureSet::all_enabled();
+    let txs = create_test_transactions(128);
+    let mut tx_iter = txs.iter().cycle();
+    b.iter(|| {
+        tx_iter
+            .next()
+            .unwrap()
+            .verify_precompiles(&feature_set)
+            .unwrap();
+    });
+}
+
+#[bench]
+fn bench_ed25519_len_32k(b: &mut Bencher) {
+    let feature_set = FeatureSet::all_enabled();
+    let txs = create_test_transactions(32 * 1024);
+    let mut tx_iter = txs.iter().cycle();
+    b.iter(|| {
+        tx_iter
+            .next()
+            .unwrap()
+            .verify_precompiles(&feature_set)
+            .unwrap();
+    });
+}
+
+#[bench]
+fn bench_ed25519_len_max(b: &mut Bencher) {
+    let required_extra_space = 113_u16; // len for pubkey, sig, and offsets
+    let feature_set = FeatureSet::all_enabled();
+    let txs = create_test_transactions(u16::MAX - required_extra_space);
+    let mut tx_iter = txs.iter().cycle();
+    b.iter(|| {
+        tx_iter
+            .next()
+            .unwrap()
+            .verify_precompiles(&feature_set)
+            .unwrap();
+    });
+}

sdk/benches/secp256k1_instructions.rs

@@ -0,0 +1,94 @@
+#![feature(test)]
+
+extern crate test;
+use {
+    rand0_7::{thread_rng, Rng},
+    solana_sdk::{
+        feature_set::FeatureSet,
+        hash::Hash,
+        secp256k1_instruction::new_secp256k1_instruction,
+        signature::{Keypair, Signer},
+        transaction::Transaction,
+    },
+    test::Bencher,
+};
+
+// 5K transactions should be enough for benching loop
+const TX_COUNT: u16 = 5120;
+
+// prepare a bunch of unique txs
+fn create_test_transactions(message_length: u16) -> Vec<Transaction> {
+    (0..TX_COUNT)
+        .map(|_| {
+            let mut rng = thread_rng();
+            let secp_privkey = libsecp256k1::SecretKey::random(&mut thread_rng());
+            let message: Vec<u8> = (0..message_length).map(|_| rng.gen_range(0, 255)).collect();
+            let secp_instruction = new_secp256k1_instruction(&secp_privkey, &message);
+            let mint_keypair = Keypair::new();
+
+            Transaction::new_signed_with_payer(
+                &[secp_instruction.clone()],
+                Some(&mint_keypair.pubkey()),
+                &[&mint_keypair],
+                Hash::default(),
+            )
+        })
+        .collect()
+}
+
+#[bench]
+fn bench_secp256k1_len_032(b: &mut Bencher) {
+    let feature_set = FeatureSet::all_enabled();
+    let txs = create_test_transactions(32);
+    let mut tx_iter = txs.iter().cycle();
+    b.iter(|| {
+        tx_iter
+            .next()
+            .unwrap()
+            .verify_precompiles(&feature_set)
+            .unwrap();
+    });
+}
+
+#[bench]
+fn bench_secp256k1_len_256(b: &mut Bencher) {
+    let feature_set = FeatureSet::all_enabled();
+    let txs = create_test_transactions(256);
+    let mut tx_iter = txs.iter().cycle();
+    b.iter(|| {
+        tx_iter
+            .next()
+            .unwrap()
+            .verify_precompiles(&feature_set)
+            .unwrap();
+    });
+}
+
+#[bench]
+fn bench_secp256k1_len_32k(b: &mut Bencher) {
+    let feature_set = FeatureSet::all_enabled();
+    let txs = create_test_transactions(32 * 1024);
+    let mut tx_iter = txs.iter().cycle();
+    b.iter(|| {
+        tx_iter
+            .next()
+            .unwrap()
+            .verify_precompiles(&feature_set)
+            .unwrap();
+    });
+}
+
+#[bench]
+fn bench_secp256k1_len_max(b: &mut Bencher) {
+    let required_extra_space = 113_u16; // len for pubkey, sig, and offsets
+    let feature_set = FeatureSet::all_enabled();
+    let txs = create_test_transactions(u16::MAX - required_extra_space);
+    let mut tx_iter = txs.iter().cycle();
+    b.iter(|| {
+        tx_iter
+            .next()
+            .unwrap()
+            .verify_precompiles(&feature_set)
+            .unwrap();
+    });
+}